EDR: Datagrid fails to start due to missing Java file after RedHat Server Update

Products

• Carbon Black EDR (formerly Cb Response)

Issue/Introduction

• The EDR server or cluster fails to start
• The /var/log/cb/datagrid/debug.log file indicates that there is a missing file inside the /usr/lib/jvm/jre-11/lib directory. 

Environment

• EDR Server: 7.7.x and Higher
• RedHat Linux Enterprise
• OpenJDK 11.0.20

Cause

An update to RedHat Linux Enterprise includes a missing file related to OpenJDK 11.0.20. This missing file is required by the EDR server to start. 

Resolution

Install the patched tzdata and tzdata-java rpm files. Visit this external link for full instructions.